1.
Imagine a classroom missing the one thing that's long been considered a necessary part to reading and writing Paper. No notebooks, no textbooks, no test paper. Nor are there any pencils or pens, which always seem to run out of ink at the critical moment.
A "paperless classroom" is what more and more schools are trying to achieve. Students don't do any handwriting in this class. Instead, they use palm size, or specially-designed computers. The teacher downloads texts from Internet libraries and sends them to every student's personal computer.
Having computers also means that students can use the Web. They can look up information on any subject they're studying from maths to social science. High school teacher Judy Herrell in Florida, US, described how her class used the Web to learn about the war in Afganistan (阿富汗) over one year ago. "We could touch every side of the country through different sites --from the forest to refugee camps (难民营)," she said. "Using a book that's three or four years old is impossible."
And exams can go online too. At a high school in Tennessee, US, students take tests on their own computers. The teacher records the grades on the network for everyone to see and then copies them to his own electronic grade book.
A paperless classroom is a big step towards reducing the waste of paper. High school teacher Stephanie Sorrell in Kentucky, US, said she used to give about 900 pieces of paper each week to each student. "Think about the money and trees we could save with the computers," she said. But, with all this technology, there's always the risk that the machines will break down. So, in case of a power failure or technical problems, paper textbooks are still widely available for these hi-tech students.
答案:AI参考:根据短文内容，以下哪个选项是正确的关于“无纸化教室”的描述？\n\nA. 无纸化教室是许多学校正在努力实现的目标。\n\nB. 无纸化教室的学生不再需要使用笔和纸进行书写。\n\nC. 无纸化教室可以减少浪费纸张，但也可能导致机器故障。\n\n正确答案是A. 无纸化教室是许多学校正在努力实现的目标。\n\n在文章中提到，越来越多的学校正在努力实现无纸化教室的目标，这反映了人们对减少纸张消耗的需求。根据上下文可知，B选项也正确，因为文章中提到学生们不再使用笔和纸进行书写，而是使用电子设备下载和发送文本。C选项提到无纸化教室可以减少浪费纸张，同时也提到有机器故障的风险，这也是正确的。但只有选项A是明确提及许多学校正在努力实现的目标，因此A是正确答案。'
2.<p><strong><span style="font-size: 16px;font-family: 微软雅黑">写出1100、1101对应的汉明码<span class="tpccontent1"><strong><span style="font-size: 12pt; font-family: 微软雅黑;">(按配偶原则配置)<strong style="white-space: normal;"><span style="font-family: 微软雅黑;">.</span></strong></span></strong></span></span></strong></p>
答案:有效信息均为n=4位,假设有效信息用b4b3b2b1表示校验位位数k=3位,(2k>=n+k+1)设校验位分别为c1、c2、c3,则汉明码共4+3=7位,即:c1c2b4c3b3b2b1校验位在汉明码中分别处于第1、2、4位c1=b4⊕b3⊕b1c2=b4⊕b2⊕b1c3=b3⊕b2⊕b1当有效信息为1100时,c3c2c1=110,汉明码为0111100.当有效信息为1101时,c3c2c1=001,汉明码为1010101
3.<p><span style="font-family: 微软雅黑; font-size: 14px;">人生价值评价的根本尺度,是看一个人的人生活动(</span><span style="font-family: 微软雅黑; font-size: 14px;"> </span><span style="font-family: 微软雅黑; font-size: 14px;">),是否通过实践促进了历史的进步。</span><br/></p><p><br/></p>
答案:<p><span style=";font-family:微软雅黑;font-size:14px"><span style="font-family:微软雅黑">是否符合社会发展的客观规律</span></span><span style=";font-family:微软雅黑;font-size:14px"><br/></span></p><p><br/></p>
4.<p><span style="font-family: 微软雅黑; font-size: 14px;">人生价值评价的根本尺度,是看一个人的人生活动(</span><span style="font-family: 微软雅黑; font-size: 14px;"> </span><span style="font-family: 微软雅黑; font-size: 14px;">),是否通过实践促进了历史的进步。</span><br/></p><p><br/></p>
答案:<p><span style=";font-family:微软雅黑;font-size:14px"><span style="font-family:微软雅黑">是否符合社会发展的客观规律</span></span><span style=";font-family:微软雅黑;font-size:14px"><br/></span></p><p><br/></p>
5.<p><span style="font-family: 微软雅黑; font-size: 14px;">钱学森曾经说过:</span><span style="font-family: 微软雅黑; font-size: 14px;">"我作为一名中国的科技工作者,活着的目的就是为人民服务,如果人民最后对我的一生所做的工作表示满意的话,那才是最高的奖赏。"这说明评价人生价值的根本尺度是( )</span><br/></p><p><br/></p>
答案:<p><span style=";font-family:微软雅黑;font-size:14px"><span style="font-family:微软雅黑">个体对社会和他人的生存和发展的贡献</span></span></p><p><br/></p>
6.I'd rather read than watch television; the programs seem ( ) all the time.
A:to have got worse B:to be getting worse C:getting worse D:to get worse
答案:to be getting worse
7.I appreciate ( ) to your home.
A:to be invited B:having invited C:to have invited D:being invited
答案:being invited
8.It ( ) quite a few years ( ) the accused was declared innocent and set free.
A:was; since B:is; that C:will be; when D:was; before
答案:was; before
9.On hearing a great noise, Mike looked forward through the window ( ) what happened outside the room.
A:seeing B:to seeing C:to see D:to have seen
答案:to see
10.I suppose that when I come back in ten years' time all those old houses ( )down.
A:will be pulling B:will be pulled C:will have been pulled D:will have pulled
答案:will have been pulled
11.We must remember that ( )fashion is not the most important thing in ( ) life.
A:/; / B:the; / C:/; the D:the; the 12.John often attends public lectures at the University of Oxford, chiefly ( )his English.
A:improved B:improving C:to have improved D:to improve 13. He wore dark glasses to avoid ( ).
A:to be recognized B:being recognized C:having been recognized D:recognized 14.He asked ( ) since he had been chairman for seven years.
A:not to have been re-elected B:to have not been re-elected C:not to be re-elected D:to be not re-elected 15.At last she left her house and got to the airport, only( ) the plane flying away.
A:to have seen B:saw C:having seen D:to see 16.You should have put the milk in the icebox; I expect it ( )undrinkable by now.
A:becomes B:had become C:has become D:became 17.Ever since the family moved to the suburbs last year, they( ) better health.
A:have been enjoying B:had enjoyed C:are enjoying D:could have enjoyed 18.Sir Dennis, who is 78, has made it known that much of his collection( ) to the nation.
A:is to leave B:has left C:is to be left D:leaves 19.This robot is supposed to save a lot of labor, but it remains a problem if it ( ).
A:does B:has C:is D:saves 20.All things( ), the planned trip will have to be called off.
A:considered B:having considered C:be considered D:considering 21.The conference( ) a full week by the time it ends.
A:has lasted B:would last C:must have lasted D:will have lasted 22.The speaker, ( ) for her splendid speeches, was warmly received by the audience.
A:being known B:known C:having known D:knowing 23.Everyone had an application form in his hand, but no one knew which office room( ).
A:to be sent to B:to send it to C:to send it D:to have it sent 24.He came back late, ( ) which time all the guests had already left.
A:at B:after C:during D:by 25.The minister had his secretaries ( )a press conference.
A:to arrange B:arrange C:arranging D:arranged 26.He took down a square green bottle, ( ) he poured into a dish.
A:the content of that B:its content C:the content of which D:which content 27.It is not unusual for workers in that region ( ).
A:to be paid later than mere a month B:to pay later than a month more C:to pay late more than a month D:to be paid more than a month late 28.( ) we have finished the course, we shall start doing more revision work.
A:For now B:Now that C:Ever since D:By now 29.The professor could hardly find sufficient grounds ( )his arguments in favor of the new theory.
A:to base on B:to be based on C:which to base on D:on which to base 30.Everyone hopes that we can do something to make things better, so we can't help ( ) under the stress.
A:but working B:work C:but work D:but to work 31.During the tourist season, there are many people wandering in this city to see the old castles ( ) in the sixteenth century.
A:being built B:having been built C:built D:to be built 32.( ) a teacher in a university, it is necessary to have at least a master's degree.
A:Become B:One becomes C:To become D:On becoming 33.The man in the comer confessed to( ) a lie to the manager of the company.
A:be told B:have told C:having told D:being told 34.My wife said in her letter that she would appreciate ( ) from you sometime.
A:having heard B:to hear C:to have heard D:hearing 35.There is more land in Australia than the government knows( ) .
A:how to do B:to do with it C:to do it D:what to do with 36.Pick me up at 8 o'clock. I ( )my bath by then.
A:will have had B:will be having C:can have had D:may have 37.Ann never dreams of ( ) for her to be sent abroad very soon.
A:there being a chance B:being a chance C:there be a chance D:there to be a chance 38.The residents, ( ) had been damaged by the flood, were given help by the Red Cross.
A:all whose homes B:all their homes C:all of their homes D:all of whose homes 39.There are more than fifty proposals ( ) at the conference.
A:discussing B:discussed C:to be discussed D:having been discussed 40.( )evidence that language acquiring ability must be stimulated.
A:If being B:There being C:There is D:It is 41.The goals ( ) he had fought all his life no longer seemed important to him.
A:after which B:with which C:at which D:for which 42.The speech( ) , a lively discussion started.
A:having been delivered B:be delivered C:was delivered D:being delivered 43.The organization broke no rules, but ( )had it acted responsibly.
A:either B:so C:both D:neither 44.( ) of water makes Death Valley a desert, but it is by no means devoid.
A:Lack B:Being lack C:Because of lack D:Lacking 45.( ) the earth to be flat, many feared that Columbus would fall off the edge of the earth.
A:Having believed B:Being believed C:Believed D:Believing 46.You ( ) him so closely; you should have kept your distance.
A:shouldn't follow B:couldn't have been following C:shouldn't have been following D:mustn't follow 47.I would appreciate ( ) it a secret.
A:your keeping B:that you keep C:that you will keep D:you to keep 48.We need a more capable leader, ( ) with strong will and as well as good humour.
A:who B:which C:that D:one 49.It is no longer a problem ( ) the poor children in this district can go to school.
A:whether B:that C:so D:because 50.The police accused him of setting fire to the building but he denied ( )in the area on the night of the fire.
A:having been B:be C:to have been D:to be 51.The gray building is where the workers live, and the white one is where the spare parts( ).
A:are produced B:are producing C:produced D:being produced 52.Great as Newton was, many of his ideas ( ) today and are being modified by the work of scientists of our time.
A:are to challenge B:have been challenged C:are challenged D:may be challenged 53.There were many more people who got injured in the big fire than ( ).
A:were reported B:they were reported C:was reported D:it was reported 54.The time is not far away ( ) modern communications will become widespread in China's vast countryside.
A:as B:before C:when D:until 55.Of all the applicants, ( ) do you think is fit for the position?
A:whomever B:whoever C:who D:whichever 56.( ) as it was at such a time, his work attracted much attention.
A:Being published B:Publishing C:To be published D:Published 57.Once environmental damage ( ), it takes many years for the system to recover.
A:does B:is done C:is to do D:has done 58.My train arrive in New York at eight o'clock tonight. The plane I would like to take from there ( )by then.
A:had left B:has left C:will have left D:would leave 59.No one had told Smith about ( ) a lecture the following day.
A:there be B:there was C:there would be D:there being 60.I'll never forget ( ) you for the first time.
A:having to be meeting B:to have met C:to meet D:meeting 61.It is ( ) that terrorism is a great threat to world peace.
A:widely accepted B:wide accepted C:wide accepting D:widely accepting 62.We regret ( ) you that the materials you ordered are out of stock.
A:to inform B:informing C:to have informed D:having informed 63.It is the news ( ) most parents of the hope that there is a safe and socially approved road to a kind of life they themselves have not had, but their children can.
A:that deprives B:that deprive C:that it deprives D:when it deprives 64.If you smoke in a non-smoking section people( ).
A:have objected B:must object C:will object D:objected
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